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Communication system and data transmission method thereof

a communication system and data transmission technology, applied in the field of communication system and data transmission method thereof, can solve the problems of target enb not being able to precisely identify the time point to transmit target data, and having difficulty in determining the transmission order between source data and target data, so as to achieve efficient data transmission to user equipment

Active Publication Date: 2014-04-29
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
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Benefits of technology

[0009]An aspect of the present invention is to address at least the above-mentioned problems and / or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present invention is to provide a communication system and data transmission method thereof that efficiently transmits data to user equipment when a handover is performed between evolved Node Bs (eNBs).

Problems solved by technology

However, the target eNB has difficulty in determining the transmission order between the source data and the target data.
That is, the target eNB cannot precisely identify a time point to transmit target data to user equipment.

Method used

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  • Communication system and data transmission method thereof
  • Communication system and data transmission method thereof
  • Communication system and data transmission method thereof

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Embodiment Construction

[0026]The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the invention as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0027]The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the invention. Accordingly, it should be apparent to those skilled in the art that the following description of exemplary embodime...

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Abstract

A communication system and data transmission method thereof are provided. The method includes adding an end marker to the end of source data and transmitting the source data and the end marker for a Packet data network GateWay (PGW) to a source evolved Node B (eNB) if a handover is carried out from the source eNB to a target eNB while the PGW is transmitting the source data to the source eNB, forwarding the source data and the end marker from the source eNB to the target eNB, transmitting target data immediately following the source data from the PGW to the target eNB, and transmitting the source data and the target data, which is classified into the source data by the end marker and immediately follows the end of the source data, from the target eNB to user equipment.

Description

PRIORITY[0001]This application claims the benefit under 35 U.S.C.§119(a) of a Korean patent application filed in the Korean Intellectual Property Office on Oct. 30, 2008 and assigned Serial No. 10-2008-0106915, the entire disclosure of which is hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a communication system and data transmission method thereof. More particularly, the present invention relates to a communication system and data transmission method thereof that efficiently transmits data to user equipment when a handover is performed between evolved Node Bs (eNBs).[0004]2. Description of the Related Art[0005]In general, Universal Mobile Telecommunication Systems (UMTS) refer to a third (3rd) generation communication system that is based on a Global System for Mobile communications (GSM) and General Packet Radio Services (GPRS), and uses Wideband Code Division Multiple Access (WCDMA). A 3rd Generat...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H04W4/00
CPCH04W36/02H04W36/0016
Inventor LIM, CHAE GWONCHOI, SUNG HOLIM, HYOUNG KYUYEOUM, TAE SUNBAE, EUN HUI
Owner SAMSUNG ELECTRONICS CO LTD
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